Self-cleaning oil-burner.



No. 739,788. PATENTBD SEPT. 22, 1903. P. K. MORGOM & W. G. SGHAFPER.-

SELF CLEANING OIL BURNER.

APPLICATION FILED APR. 14, 1903.

N0 MODEL. m 2 SHEETS-SHEET 1. /b- 2 "mum i A WIIII l UNITED STATES Batented September 22, 1903.

PATENT OFFICE.

PHILIP K. MOROOM AND VVILLIAM G. SOHAFFER, OF DENVER, COLORADO; SAID MORC OM ASSIGNOR OF ONE-SIXTH TO SAID SGHAFFER.

SELF-CLEANING OIL-BURNER.

VPIECIFICATION forming Application filed April 14, 1903.

To all whmn it may concern:

Be it known that we, PHILIP K. MORCOM and WILLIAM G. SCHAFFER, citizens of the United States of America, residing in the city and county of Denver and State of Colorado, have invented certain new. and useful Improvementsin Self-Cleaning Oil-Burners and we do declare the following to be a full, clear, and exact description of the invention, such as willenable others skilled in the art to whichit appertains to make and use the same, reference beinghad to the accompanying'drawings, I and to the figures of reference marked thereon, which form a part of this specification.

Our invention relates to improvements in oil-burners. Crude oil is generally employed with burners of this class, and for this reason they frequently become dirty or gummed up and require cleaning.

Our present invention, while containing other novel features, is especially intended to facilitate the cleaning operation, and we therefore prefer to term the invention a selfcleaning oil-burner. In this construction provision is made for withdrawing the bu rnertube, whereby its discharge extremity is made to enter the cylinder. The exit-opening in the cylinder, through which the discharge of the burner-tube normally protrudes, is then closed by the proper adjustment of a suitable gate, after which the steam is turned on and a valve communicating with the burnertube opened to allow the steam to escape after passing through the tube. In this way the tube may be thoroughly and very quickly cleansed of all impurities. If it is desired to clean the cylinder at the same time, a steamexit valve communicating therewith is also opened. In this manner both the cylinder and the burner tube are simultaneously cleansed. If it is only desired to clean the cylinder, the exit-valve communicating with the burner tube is left closed. Thus the burner-tube and the cylinder may be simultaneously or separately cleaned, as may be desired.

Our improved burner in its general construction consists of a steam-cylinder communicating with a steam-supply pipe, through which cylinder the burner-tube passes. In

what will be termed the inner extremity part of Letters Patent No. 739,788, dated September 22, 1903.

Serial No. 152.539. (No model.)

of the cylinder is formed an opening, through which the discharge extremityof the burnertube slightly protrudes when in the operative position. The extremity ted for the escape of the oil and is provided with a passage com municatin g with the steam cylinder, whereby a jet of steam from the cyl inder is delivered at the oil-escape opening of the tube, whereby the oil is drawn from the tube and atomized, whereby perfect combustion is effected. For convenience the burnertip is removably connectedl with the tube. This tip is provided with a detachable sleeve, having an opening through which the steam passes to the slotted extremity of the tip.

Having briefly outlined our improved construction and specified some of its advantages, we will proceed to describe the same in detail, reference being made to the accompanying drawings, in which is illustrated an embodiment thereof.

In the drawings, Figure l is an elevation of our improved construction. Fig. 2 is a section taken on the line 2 2, Fig. 1, but showing the burner-tip drawn into the cylinder and, the gate closed. Fig. 3 is a section taken at right angles to Fig. 2, showing the burner in the operative position. Fig. 4 is a detail view of the burner-tip with the sleeve removed. Fig. 5 is a detail view of the tipsleeve.

The same reference characters indicate the same parts in all the views. Let the numeral 5 designate a casing composed of an enlarged cylindrical body part 6 and a neck portion 7. The body portion is provided with an interiorlythreaded open-- ing into which is screwed a cylinder 8. W hen the device is in use, this cylinder is passed of the tube is slotdie 14 and the slot 15.

closely in the neck 7 adjacent the body of the casing and passes through a chamber formed in an enlarged part 7 of the neck and thence through a stuifing-box 13, applied to the outer extremity of the neck part 7. Hence the tube fits closely on both sides of the neck part 7. The outer extremity of the tube projects some distance beyond the stuffing-box and is provided with a handle 14 for convenience of adjustment. This handle consists of a cross-piece extending at right angles to the tube and parallel or at right angles to the slot 15, formed in a tip 16, so that as the tube is rotated or turned by the use 'of the handle the position of the slot may be known to the operator. When the burner is in use, a wide fiat flame issues from the burner-slot, said flame increasing in width as it leaves the tip. This flame occupies a position in the plane of the slot 15, and in order to utilize it to the best possible extent or obtain its greatest efficiency it is necessary that the plane of the flame should occupy a position parallel with the surface to be heated. Hence the advantage of the relative arrangement of the ban- In Fig. 2 the handle is-shown parallel with the slot, while in Figs. 1 and 3 it is at right angles thereto. It is evident that the precise relative position is not important so long as it is understood by the operator.

The enlarged part 7 of the neck is provided with an opening into which is screwed an oil-supply pipe 17, leading from anysuitable source of oil. Opposite this oil-inlet is located another opening, into which is screwed a valve or petcoek 18, which is closed when the burner is in use for heating purposes or whenthe oil is turned on. The portion of the burner-tube located within the neck part 7 is provided with a number of slots 19, through which the oil passes to the interior of the tube from the supply-pipe. The body part 6 of the casing is provided with a threaded opening, into which a steam-supply pipe 20 is threaded, while opposite this pipe is another opening,.into which is screwed a valve or petcock 21, which is normally closedthat is, when the burner is in use for heating purposes.

The tip 16 is screwed into the inner extremity of'the tube 12 and is provided with a collar 16% which abuts against the tube extremity. To the tip beyond the collar is applied a sleeve 21, which is held in place by a set-screw 22, passing through a slot 23, formed in the sleeve, the set-screw being threaded in the tip, which is provided with an opening 16 for the purpose. This construction gives the sleeve a limited degree of longitudinal play or movement on the tip. This sleeve is transversely slotted on one side, as shown at 24, and the tip is rounded or cut away on the corresponding side, as shown at 16, whereby a channel 26 is formed for the passage of the steam from the cylinder 8 to the mouth or discharge extremity of the oilescape slot 15. This steam-jet produces a partial vacuum at the slot extremity, and the oil drawn from the tube by suction is atomized by the said jet, whereby the combustible particles are intimately or advantageously exposed to the flame, whereby a perfect or approximately perfect combustion is brought about. lVhen the burner is in use, the sleeve occupies a 16 the same as if it were an integral part of the tip; but when the burner-tube occupies the position shown in Fig. 2.. the sleeve 21 may move forwardly in response to the action of the steam, whereby the cleansing of the oil-feed channel is facilitated.

A plate 25, forming a gate or valve, is located within the cylinder 8 and is employed to close the opening 10 when the burner-tube is withdrawn to the positionshown in Fig. 2. This plate is attached to a stem 27, and the latter passes through a packing-sleeve 28, threaded in the top of the casing and extend ing parallel with the burnertube. This sleeve is locked in any desired position of adjustment by a lock-nut 29. The outer extremity of the sleeve is provided with a head adapted to receive a wrench for purposes of adjustment. The stem of the gate is adapted to turn freely in' the packing-sleeve; but the arrangement is such that a steam-tight joint is formed between the stem and said sleeve. In order to prevent the stem from moving outwardly too far,it is provided located within the steam-cylinder. The outer extremity of this stem is provided with a handle 27 for convenience of adjustment.

From the foregoing description the use and operation of myimproved device will be readily understood. Assuming that the parts are in the position shown in Figs. 1 and 3 of the drawings, the valves 18 and 30 beingclosed, oil is introduced by way of the pipe 17 into the burner-tube 12 and steam simultaneously introduced into the cylinder 18 by way of the pipe 20. The steam entering the cylinder 8 passes out through the channel 26 in a jet across or adjacent the slot 15 ot the tube, thus creating a partial vacuum at the oil-discharge extremity of the burnertube and causing the oil to rush out in an atomized condition, which being lighted results in a sheet of flame directed underneath the surface to be heated, as of a steam-boiler. When it isdesired to clean the burner-tube, the same is withdrawn to the position shown in Fig. 2 by a rearward or outward movement of the tube 12, which is effected by a pull on the handle 14. The valve 25 is then thrown to the position shown in Fig. 2, whereby the opening 10 at the inner extremity of the steam-cylinder is closed. The valve 18 is then opened and steam introduced into the cylinder from the pipe 20. This steam so introduced will enter the burner-tube at its discharge extremity and rush out through the valve 18, escaping from the tube by way of the ports or slots 19.

position in contact with the collar with apin 27,

This is continued until ICC IIO

r'ities resulting from use.

. weaves the tube is thoroughly cleansed of all impu- If it is desired at the same time to cleanse the steam-cylinder 8, the valve 30 is opened and a volume of steam is introduced to the cylinder from the pipe sufficient to clean both the cylinder and the burner-tube at the same time. It is evident, however, that these two instrumentalities may be separately cleansed, depending on whether one or both of the valves 18 and are left open when the parts arein the position shown in Fig. 2 of the drawings.

Having thus described our invention, What we claim is a 1. In an oil-burner, the combination witha steam-cylinder,a burner-tube passing through the cylinder and adapted to enter an opening formed in the inner extremity of the cylinder, means for introducing oil to the burner-tube, the latter having a discharge-opening at its extremity, means for discharging a jet of steam from the cylinder at a point adjacent the exit extremity of the burner-tube, Whereby the oil-dischargeis atomized, means for closing the opening of the cylinder, and a valve-controlled outlet connected with the burner-tube for the escape of steam after passing through a portion of said tube from the steam-cylinder, for the purpose of cleaning the tube.

2. In an oil-burneigthe combination with a casing provided with a steam cylinder, a burner-tube movable longitudinaily in the casing, passing through the cylinder and adapted to enter an opening formed in the inner extremity of the cylinder, means for introducing oil to the burner-tube, the latter having a discharge-opening at its extremity, means for discharging a jet of steam from the cylinder at a point adjacent the exit extremity of theburner-tube,whereby the oildischarged is atomized, means for closing the opening at the inner extremity of the cylinder when the burner-tube is Withdrawn, and a valve-controlled outlet connected With the burner-tube for the escape of steam after passing through a portion of said tube from the steam-cylinder for the purpose of cleansing the burnertube.

3. Thecombination with a casing provided With a steam-cylinder having an opening at. its inner extremity, a burner-tube longitudi nally movable in the casing and adapted to pass through the steam-cylinder and enter the opening at the inner extremity of the latter, the inner extremity of the burner-tube having a discharge-opening, a channel communicating at one extremitywith the steamcylinder, and opening at the other extremity adjacent the discharge-openingof the burnertube, whereby a jet of steam passing through said channel will atomize the oil discharged at the inner extremity of the burner-tube, means for introducing steam to the cylinder, means for introducing oil to the burner-tube, means for closing the opening at the inner V extremity of the steam-cylinder when the tremity,

discharge extremity of the burner-tube is drawn into the cylinder, valve controlled openings communicating with the burnertu-be, and steam-cylinder whereby the tube and cylinder may be cleansed by the introduction of steam to the cylinder after the opening'in the inner extremity of the latter is closed.

4. The combination with a casing provided with a cylinder having an opening at its inner extremity, a tube longitudinally movable in the casing, adapted to pass through the cylinder and enter the opening at its inner exthe inner extremity of the said tube having a discharge-opening, means for introducing fluid under pressure to the cylinder, means for discharging a jet of fluid'from the cylinder at a point adjacent the dischargeopening at the inner extremity of the tube for atomizing the oil discharged from the latter, means for introducing oil to the burnertube, means for closing the opening of the inner extremity of the cylinder when the discharge extremity of the burner-tube is drawn into the cylinder, and a valved outlet connected with the burner-tube for the escape of fluid fromthe cylinder after having passed through a portion of the said tube for cleansing purposes.

5. In an oil-burner, the combination with a fluid-receptacle, a hurnertube passing through the receptacle and adapted to enter an opening formedin one extremity thereof means for introducing oil to the burner-tube, the latter having a discharge-opening at its extremity, means for discharging a jet of fluid from the receptacle at a point adjacent the exit extremity of the burner-tube, whereby the oil discharged is atomized, means for closing the said'opening of the receptacle, and a closable outlet connected with the burnertube for the escape of fluid after passing through a portion of said tube from the fluidreceptacle for the purpose of cleaning the burner-tube.

6. In an oil-burner, the combination of a suitablecasing, a cylinder detachably con-' nected with the'casing and provided with an opening at its inner extremity, means for introducing fluid under pressure to the cylin der, a valve-controlled discharge-opening also connected with the cylinder, a burner-tube movable longitudinally in the casing and adapted to pass through the fluid-cylinder and enter the opening at the discharge exiremity of the latter, the inner extremity of the tube being provided with a detachable tip having a discharge-opening, a channel communicating with the fluid-cylinder and arranged to deliver a fluid-jet adjacent the discharge extremity of the burner-tip for atomizing purposes, the casing being provided with a valve-controlled opening communicating with the burner-tube, and a suitable gate for controlling the opening at the inner extremity of the cylinder, said gate being controllable from the outside of the cylinder.

7. In an oil-burner, the combination with a casing having a reduced neck connected therewith at one extremity, and a fluid-cylinder detachably connected'thcrewith at the opposite extremity, the said cylinder having an opening at the extremity remote from the casing, means for introducing fluid under pressure to the cylinder, a burner-tube movable longitudinally in the casing and having a discharge-opening at its inner extremity, the inner extremity of the said tube being adapted to enter the opening at the inner extremity of the cylinder, a stuffing-box applied to the outer extremity of the neck of the easing, through which the burner-tube passes, a chamber intermediate the stuifing-box and the, body of the casing, the'said tube having openings communicating with said chamber, means for introducing oil or other suitable combustible fluid to the said chamber whereby it is adapted to enter the burner-tube,the casing having a valve-controlled dischargeopening communicating with the said chamber, means for introducing a jet of fluid to the cylinder across the discharge extremity of the burner-tube, and means located within the fluid-cylinder for closing the opening at its inner extremity when the discharge extremity of the burner-tube is drawn into the cylinder, whereby the fluid under pressure from the cylinder is caused to pass through the burner-tube and out of the valve-controlled discharge-opening connected with the casing and communicating with the burnertube. I

8. In an oil-burner, the combination with a cylinder or receptacle adapted to receive fluid from a suitable source, the said cylinder havingan opening at one extremity, a burnertube movable longitudinally in the cylinder and entering said opening therein whereby the tube may be drawn out of the opening into the cylinder when desired, the said tube having a discharge-opening at its extremity adjacent the opening in the cylinder, means for introducing oil or other combustible fluid to the burner-tube, means for discharging a jet of fluid from the cylinder at a point adjacent the exit extremity of the burner-tube whereby the oil discharged is atomized, means for closing the said opening in the cylinder after the burner-tube is withdrawn into the adapted to pass through the said cylinder and enter the opening at the inner extremity of the latter, the inner extremity of-the tube having a discharge-opening, means for delivering a fluid-jet from the cylinder at a point adjacent the discharge-opening of the burner-tube whereby the oil is drawn from the tube and atomized, means connected with a source of oil-supply for introducing oil to theburner-tube, means for closing the opening at theinner extremity of the cylinder after the inner extremity of the burner-tube has been drawn into the cylinder, and a valved outlet connected with the burner-tube for the escape of fluid from the cylinder after having passed through a portion of the said tube for cleansing purposes.

10. In an oil-burner the'combination ofacylinder adapted to communicate with a source of fluid under pressure and having an opening at one extremity, a burner-tube passing through the said cylinder and entering the opening at'the inner extremity of the latter, the said extremity of the tube having a discharge-opening, means of delivering a fluidjet from the cylinder at a point adjacent the discharge-opening of the burner-tube Whereby the oil is drawn from the burner-tube and atomized, means for cutting ofi the escape of the fluid-jet adjacent the discharge extremity of the burner-tube, and a valved outlet connected with the cylinder for the escape of fluid therefrom after the fluid has passed through the cylinder, for the purpose of cleansing the latter.

In testimony whereof we affix our signatures in presence of two witnesses.

PHILIP K. MOROOM.

WILLIAM G. SOHAFFER.

Witnesses:

DENA NELsoN, A. J. OBRIEN. 

